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Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


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As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

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JS dependencies checker




:white_check_mark: Dependencies Checker


Easily control the versions of dependencies your project accepts. Why?

  • :handshake: Consistency: Guarantees to use the exact same versions everywhere.
  • :bug: Avoid bugs: Make sure there are no duplicate entries in your dependencies.
  • :gear: Automation: Automatically rejects PRs when conditions are not met.


The lib only takes the path to the package.json as a param. It will default to the current directory when not provided.

GitHub actions

Create a file .github/workflows/dependencies-checker.yml with:

name: Check for dependencies without specific version

on: [ push ]

    runs-on: ubuntu-latest
    name: Check for dependencies without specific version
      - uses: actions/checkout@v3
      - uses: matheusjardimb/dependencies-checker@latest

Add the following to specify a custom package.json path:

      - uses: matheusjardimb/dependencies-checker@latest
          packageJsonPath: 'app/package.json'
          quite: true


Add the following block to your .gitlab-ci.yml file:

  image: node:20.5.0
    - export INPUT_PACKAGEJSONPATH='package.json' # This line is optional
    - export INPUT_QUIET='true' # This line is optional
    - npx dependencies-checker@latest


Dependencies checker is also published into npm, so you can run with:

export INPUT_PACKAGEJSONPATH='package.json' # This line is optional
export INPUT_QUIET='true' # This line is optional
npx dependencies-checker@latest

Custom rules

Add a dependencies-checker block to your package.json file, if you need customize the default rules:

  "dependencies": {
    "react": "^18.2.0",
    "axios": "1.3.5 | 1.3.6",
    "react-native": "0.71.2"
  "devDependencies": {
    "prettier": "^2.8.8"
  // ...
  "dependencies-checker": {
    "blocks-to-check": [
      // Ignores "devDependencies"
    "ignored-dependencies": [
      // Ignores the '^' at "react"
    // These version descriptors are not allowed by default:
    //     'latest', '^', '~', 'x', '*', '>', '<', '|', '-'
    "valid-descriptors": [
      // Allows the '|' at "axios"


See more about the MIT licensing at This project was originally created as a fork of github-developer/javascript-action.


Pull requests are welcome! See for more. Please consider activating pre-commit before committing (npm run pre-commit.install).